RE: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-21 Thread Ken Alker
--On Wednesday, January 21, 2004 12:56 AM + Adthrawn [EMAIL PROTECTED] wrote: [...] Assume I have a non-POE switch with 24 RJ-45 (ethernet)=20 ports. I design a=20 1U box that can be mounted just above/below the non-POE=20 switch, call it a=20 POEI (POE inserter). This box has 48 RJ-45

Re: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-21 Thread Clif Jones
Follow this link for some more info. Maxim IC just released a couple of chips that handle the details of 802.3af for you. http://www.maxim-ic.com/view_press_release.cfm/release_id/925 Matteo Brancaleoni wrote: Hi. The POEI simply connects the four ethernet signals on each of its inputs

[Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-20 Thread Ken Alker
Based on several threads I've read on this list, I assume that it would be handy to supply POE (power over ethernet) in an environment without having to purchase POE switches (assumed expensive) and abandon one's existing (familiar/custom/not-yet-expensed/etc.) switches/hubs. Assume I have a

Re: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-20 Thread Jan Baumann
Ken Alker wrote: Based on several threads I've read on this list, I assume that it would be handy to supply POE (power over ethernet) in an environment without having to purchase POE switches (assumed expensive) and abandon one's existing (familiar/custom/not-yet-expensed/etc.) switches/hubs.

Re: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-20 Thread John Baker
Froogle is your friend http://froogle.google.com/froogle?q=powerdsine - Original Message - From: Michiel Betel [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, January 20, 2004 3:08 AM Subject: Re: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product

Re: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-20 Thread Matteo Brancaleoni
Hi. The POEI simply connects the four ethernet signals on each of its inputs (pins 1,2,3,6 on each) to the same pins on its corresponding outputs. Additionally, it supplies -48VDC (maybe selectable if there are other voltage needs) on the appropriate pins (also maybe selectable if

RE: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-20 Thread Kevin Ragsdale
-Original Message- From: Ken Alker [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 20, 2004 2:59 AM To: [EMAIL PROTECTED] Subject: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea Does something like this already exist for cheap? If so, is it any good

Re: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-20 Thread Steven Critchfield
On Tue, 2004-01-20 at 08:02, Matteo Brancaleoni wrote: Hi. The POEI simply connects the four ethernet signals on each of its inputs (pins 1,2,3,6 on each) to the same pins on its corresponding outputs. Additionally, it supplies -48VDC (maybe selectable if there are other voltage

Re: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-20 Thread Steven Critchfield
On Tue, 2004-01-20 at 02:59, Ken Alker wrote: Based on several threads I've read on this list, I assume that it would be handy to supply POE (power over ethernet) in an environment without having to purchase POE switches (assumed expensive) and abandon one's existing

Re: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-20 Thread Martin
On Tuesday 20 January 2004 10:30 am, Kevin Ragsdale wrote: 3Com makes a 24-port midspan box that sells for around $800. Kevin This electronic message transmission, including attachments, is for the exclusive use of the individuals to which this e-mail is addressed and is to be

RE: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-20 Thread daryl
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ken Alker Sent: Tuesday, January 20, 2004 3:59 AM To: [EMAIL PROTECTED] Subject: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea [...] Assume I have a non

RE: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-20 Thread Kevin Ragsdale
-Original Message- From: Martin [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 20, 2004 10:23 AM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea snip http://www.goldmark.org/jeff/stupid-disclaimers/ -- Art

RE: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch(or hub); product idea

2004-01-20 Thread Dan Austin
- From: Steven Critchfield [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 20, 2004 7:55 AM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch(or hub); product idea On Tue, 2004-01-20 at 08:02, Matteo Brancaleoni wrote: Hi. The POEI simply

Re: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-20 Thread Darren Poulson
On Tuesday 20 Jan 2004 9:08 am, Michiel Betel wrote: Ken Alker wrote: Based on several threads I've read on this list, I assume that it would be handy to supply POE (power over ethernet) in an environment without having to purchase POE switches (assumed expensive) and abandon one's

RE: [Asterisk-Users] Power Over Ethernet for *any* ethernet switch (or hub); product idea

2004-01-20 Thread Adthrawn
[...] Assume I have a non-POE switch with 24 RJ-45 (ethernet)=20 ports. I design a=20 1U box that can be mounted just above/below the non-POE=20 switch, call it a=20 POEI (POE inserter). This box has 48 RJ-45 ports, 24=20 [...] Are POE switches expensive enough to warrant manufacturing=20 above?